The invention relates to water-based paint for a pipeline. The water-based paint for the pipeline is prepared from modified phenolic resin, pitch, alcohol acid emulsion, chromium oxide green, an anti-rusting agent, low polymer polyhydric alcohols, maleic anhydride, methyl methacrylate, hydroxyl ethyl acrylate, hydroxylated fiber resin, polyether sulfone resin, polysorbate, sodium hexametaphosphate, organic silicon emulsion, epoxy silane modified silicon sol, crosslinked polyethylene, tert-butyl peroxybenzoate, sodium silicate, melamine phosphate, pentaerythritol, aluminum silicate fibers, silicon dioxide, antibacterial preservative, titanium dioxide, Ni, Zn, water and other raw materials. Due to the fact that the ingredients such as Ni and Zn are contained in the water-based paint for the pipeline, the water-based paint for the pipeline has the high-temperature resisting and corrosion resisting performance, is suitable for coating demands of various occasions, does not contain toxic organic solvents, is free of pollution and has the advantages that a paint surface cannot crack, and the paint is resistant to aging, high in adhesive force and the like.